Move testRunner.setTouchDragDropEnabled to internals.settings
https://bugs.webkit.org/show_bug.cgi?id=112739

Reviewed by Adam Barth.

Tools:

* DumpRenderTree/chromium/TestRunner/src/TestRunner.cpp:
(WebTestRunner::TestRunner::TestRunner): Remove unnecessary code.
* DumpRenderTree/chromium/TestRunner/src/TestRunner.h:
(TestRunner): Remove unnecessary code.
* DumpRenderTree/chromium/TestRunner/src/WebPreferences.cpp:
(WebTestRunner::WebPreferences::reset):
(WebTestRunner::WebPreferences::applyTo): Always set to false.

LayoutTests:

Update tests to use internals.settings. This testRunner method was only exposed on
Chromium, but now that Settings.in generates internals.settings setters, we can
use that instead.

* fast/events/touch/gesture/long-press-on-draggable-element-in-iframe-triggers-drag.html:
* fast/events/touch/gesture/long-press-on-draggable-element-in-nested-iframes-triggers-drag.html:
* fast/events/touch/gesture/long-press-on-draggable-element-triggers-drag.html:
* touchadjustment/touch-links-longpress.html:


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@146300 268f45cc-cd09-0410-ab3c-d52691b4dbfc